C#C
C#•3y ago
d3adin.

❔ Console.ReadLine != null

Hi all,

I'm went trough this Microsoft challenge (unsuccessfully) and after reviewing this solution I'm trying to understand what the purpose is of:

 if (readResult != null) 
    {
        valueEntered = readResult;
    }


Upon testing I can see that the code works exactly the same that being commented out. Here is the full program.

string? readResult;
string valueEntered = "";
int numValue = 0;
bool validNumber = false;

Console.WriteLine("Enter an integer value between 5 and 10");

do
{
    readResult = Console.ReadLine();
    if (readResult != null) 
    {
        valueEntered = readResult;
    }

    validNumber = int.TryParse(valueEntered, out numValue);

    if (validNumber == true)
    {
        if (numValue <= 5 || numValue >= 10)
        {
            validNumber = false;
            Console.WriteLine($"You entered {numValue}. Please enter a number between 5 and 10.");
        }
    }
    else 
    {
        Console.WriteLine("Sorry, you entered an invalid number, please try again");
    }
} while (validNumber == false);

Console.WriteLine($"Your input value ({numValue}) has been accepted.");

readResult = Console.ReadLine();
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